Hello. My mortgage interest looks duplicated. I do work from home and use 1/4 of my house as an office to earn my income. I'm itemizing deductions.

[zulfiya66]

So does the mortgage interest is being considered twice for the purpose of writing off interest related to 1/4 of my house used as an office?

[AnnetteB6]

If your home office is one quarter of your house, then one quarter of your mortgage interest should be reported with your home office expenses on Form 8829.  The other three quarters of the mortgage interest should be reported on Schedule A itemized deductions.

Pay close attention to the messages on the screen when you are entering mortgage interest in both sections of your return.  TurboTax will let you know if the personal portion will automatically transfer to the Schedule A after entering it for the home office.  Then, when you get to the Schedule A section, the amount that has already transferred from the home office entry should be shown on the screen so you should not enter it again.